Step-by-step pencil case



Feb. 26, 1929.

-L. DI REBAYLIO STEP-BYQSTEP PENCIL CASE Filed Nov. 5, 1926 ||H. HHHHHHHPatented Feb. 26, 1929.

UNITED 1.110 m REBAYLIO, or BLOOMFIELD, New JERSEY.

srnr nx srnr PENCIL CASE.

Application filed November 3, 1926. Serial No. 146,002.

This invention relates to what are termed step-by-step lead-feedingpencil cases. That is to say, when ready for use in the usual way acertain length of the lead or other marking rod projects from theforward end ofthe casing. When by reason of wearing away in use or thebreaking off of the exposed end it becomes necessary to-extend the lead,certain movable parts of the. holder are reciprocated to bring about thedesired projection of the marking element. It is to the class of suchpencil cases thatthis invention belongs.

The object of theinvention is the production of a writing or markinginstrument of the nature stated comprising combined parts ofparticularly cheap and strong character, and having special constructionand arrangement whereby the lead may be securely held when in use, andcertainly and conveniently fed'when further exposure is called for.

In the accompanying drawings the special construction and arrangement ofthe parts of this invention are illustrated. Fig. 1 is a section throughthe conical end and external cone of this invention. The lead is shownin position for use. Fig. 2 is a similar view showing the conical endandclamping external cone separated, andiready for the lead feedingmovement. Fig. 3 is a like sectional View of a modified form of thisinvention. Fig. 4 is a vertical cross-section on the broken line 4.- 1of Fig. 3. Fig. '5 is. an end View of the wire retaining clamp shown inFig. 3. Fig. 6'is a side View of the wire clamp. I v In all the figuresof the drawing the scale of drawing has been considerably exaggerated torender the illustrations clearer. I

Throughout the description and drawings the same numeral is used torefer to the same art. P Considering the drawings, Figs. 2 and 3, thebody 1 of any chosen material has a lead or crayon 2 nr'ovalfle'lengthwise in a suitable bore through the body. The body 1 has theexternal screw threads 3, a reduced portion 4 of less diameter, and aconical end 5 having a split 6 extending lengthwise thereof. The leadpasses out through the end 7 of the conical end 5. The end 7 fits into asimilarly shaped end 8 of an external cone 9, which has the threadedgrooves 10 corresponding to and in engagement with the threads 3 of thebody 1. In the split or channel 6 are the legs 11 of the wire feed clampby which the lead is moved, and this clamp has a semi-circular endportion 12 movably'engaging the reduced portion 4 of the body 1.

In a circumferential groove 13 formed in the exterior of cone 5 asemicircular body portion 1a of a retaining clamp is located, and thelegs 15 of this clamp are located in the split 6 of the conical end 5 ofthe body within the legs 11 of the feed clamp. These parts will be againreferred to.

In the modification illustrated in Fig. 3 the body 17 has through it thelongitudinally movable lead 18. The body 17 has the portion 19 ofreduced diameter and the conical end portion 20 as previously explainedin connection with Figs. 1 and 2. The split or channel in the conicalend 20 is marked 21, Y

and the external hollow cone is designated by number 22. It willbeoobserved in Fig. ,3 that the cylindrical end of-the external cone 22,has the inwardly turned and rounded pertion 23..engaging thesemi-circular end 2 10f a wire feed clamp, the legs 25 of which arearranged in the split .21 in engagement with the lead 18. V l

In a circumferential groove 26 upon the exterior of the conical end 20of the body 17 is placed the semi-circular end 27 of, the wire retainingclamp, the legs 28 of which are ar ranged in the split 21 below ortowards the lead 18 with respect to the legs 25 of the feed clamp. It isdesired that attentionfmay be given to the fact that the wire feed andretaining clamps are all of the same shape and construction, and asillustrated in Figs. 5 and 6. For that'reason it is not regarded asnecessary to introduce separate figures all of the same kind toillustrate the structureof each ation isthe same for each wire clamp.

To explain the operation, let it be assumed that while the parts areassociated as illustrated as inFig. 1 an end piece16 of the lead isbroken off as illustrated in Fig. 2. By rotating body 1 while holdingcone 9, theconical end 5 is drawn in as illustrated in Fig. 2, and thesemi-circular portion 12 of the outer or feed clamp is now on the lefthand side of the reduced portion 4 of the body. This position is broughtabout by reason of the fact that the semi-circular end portion 12 of thefeed clamp engages a. portion of the internal grooves in theexternalcone 9 as shown in Figs. 1 and 2, and the reduced portion 4slips within the portion 12 of the feed clamp as the body 1 movesrotatively towards the right hand. During this movement the feed.

clamp legs grip the lead. Now, the load has in eliect been extendedfurther from the end 7 of the conical end by the legs 11 of the outer orfeed clamp, and if the cone 9 be turned so as to restore the parts tothe positions set forth in Fig. 1 the legs 15 of the in ner or retainingwire clamp will hold the lead in position until the movement of the cone9 to the right again exposes a desired length for writing purposes,and'clamps the split Cone 5 on the lead as before. The inner orretaining Wire clamp is necessary for the reason that when the body 1 isrestored to the position with-respect to the other parts as illustratedin Fig. 1, the lead is moved towards the left hand between and incontact with the ends of the legs of the teed clamp, which tendsslightly to retard that movement. But, the legs 15 of the retainingclamp by reason of their grip of the lead maintain the desired movementof the lead with the body 1 towards the left hand.

In the modification shown in Fig. 3 the operation is very closely thesame. If the lead breaks off or is used up, the cone 22 may be moved tothe left hand, the rounded end portion 23 traversing the reduced portion19 of the body 17. This movement in effect feeds the lead 18 to theleft, and when the cone 22 is again restored to the position forth inFig. 8 by a movement to the right hand side, the legs 28 of theretaining clamp prevent the inward movement of the lead with the cone.It is believed that the special parts described are unusually simple instructure and may be most cheaply manufactured, and that they arelasting in character and cannot get out of order in operation.

Having now described this invention and explained the manner of its use,what I claim 1s 1. In a step-by-step pencil case, a body part having aportion reduced in diameter and a conical end portion splitlongitudinally, the said body having a passage through it forthe lead, acone movable on the body and adapted to clamp the said split port-ion ofthe body on the lead, a member arranged in the split portion and havinga part movably engaging the said reduced portion of the body and legsengaging the lead to "feed the same, and a re taining member moved bythe said body part and arranged in the said split portion and positivelyengaging the said conical end of the body and having legs acting uponthe lead to hold the same against movement inwardly with respect to thebody.

2. In a step-by-step pencil case, a body part having a portion reducedin diameter and a conical end portion split longitudinally, the saidbody having a passage through it for the lead, a cone movable on thebody and adapted to clamp the said split portion of the body on thelead, a member arranged in the split portion and having a semi-circularend portion movably engaging the said reduced portion of the body andlegs engaging the lead to feed the same, and a retaining member moved bythe said body part and arranged in the said split portion and positivelyengaging the said conical end of the body and having legs acting uponthe lead to hold the same against movement inwardly with respect to thebody.

3. In a step-by-step pencil case, a body part having a portion reducedin diameter and a conical end portion split longitudinally, the saidbody having a passage through it for the lead, a cone movable on thebody and adapted toclamp the split portion of the body on the lead, a.member composed of wire having a part engaging the said reduced portionof the body and legs arranged in the said split portion engaging thelead tofeed the same, and a retaining member moved by the said body partand composed of wire having a portion positively engaging the splitconical end of the body and legs arranged in the said split portion andadapted to engage the lead to hold the same against movement inwardlywithrespect to the body.

4. In a pencil case, a body having a conical split end, the said bodyhaving a passage through it for the lead, a cone movable upon the bodyto clamp the lead in the split end of the body, leadengaging membershaving legs in the said split portion, one of said members adapted tofeed the lead and the other member moved by the said body part andarranged to act upon the lead to hold the same against movement inwardlywith respect to the body.

In testimony whereof I afiix my signature.

LEO n1. REBAYLIO.

